Android Spinner: Set selected item as default

Question

I am making an android app that asks for the users to select a country via spinner.

When the user opens the app first time, user selects a country from list.

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Answer 1

You can use SharedPreferences to store the selection the first time that the user selects a country, and then use SharedPreferences again for the app to remember the selection, when the user returns a second time.

To store the selection in a SharedPrefence:

SharedPreferences.Editor editor = getPreferences(0).edit();
int selectedPosition = yourSpinner.getSelectedItemPosition();
editor.putInt("spinnerSelection", selectedPosition);
editor.apply();

To load the selection onto the spinner when reusing the app:

SharedPreferences prefs = getPreferences(0);
yourSpinner.setSelection(prefs.getInt("spinnerSelection",0));

Hope this solves your issue :)

Answer 2

You can use sharedPreference to store the country you have chosen, then search the map and find the position of country in your array, finally use setSelection(int position)to set the default country

Answer 3

Try this one

 String citySelected
    final CharSequence[] items = {" abc ", " def ", " ghi ", " jkl ", " mno ",
            " pqr ", " stu ",
            " vwzyz "};
    List<String> lanSelected = new ArrayList<>();
    final boolean[] checkedItems = new boolean[]{false, false, false, false, false, false, false, false};
    List<String> temp = new ArrayList<>();
    for (int o = 0; o < items.length; o++) {
        temp.add(items[o].toString());
    }
    final List<Integer> seletedItems = new ArrayList();

    if (citySelected.equals("") || citySelected == null) {
    } else
        lanSelected = Arrays.asList(citySelected.split(","));

    if (lanSelected.size() > 0) {
        for (int p = 0; p < lanSelected.size(); p++) {
            String x = lanSelected.get(p);
            int xpos = temp.indexOf(x);
            if (xpos != -1) {
                checkedItems[xpos] = true;
                seletedItems.add(xpos);
            }
        }
    }

    AlertDialog.Builder builder;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        builder = new AlertDialog.Builder(context, android.R.style.Theme_Material_Light_Dialog_Alert);
    } else {
        builder = new AlertDialog.Builder(context);
    }
    // arraylist to keep the selected items
    AlertDialog dialog = builder
            .setTitle("city")
            .setMultiChoiceItems(items, checkedItems, new DialogInterface.OnMultiChoiceClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int indexSelected, boolean isChecked) {
                    if (isChecked) {
                        // If the user checked the item, add it to the selected items
                        seletedItems.add(indexSelected);
                    } else if (seletedItems.contains(indexSelected)) {
                        // Else, if the item is already in the array, remove it
                        seletedItems.remove(Integer.valueOf(indexSelected));
                    }
                }
            }).setPositiveButton("OK", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int id) {
                    String city = "";
                    for (int i = 0; i < seletedItems.size(); i++) {
                        if (i == seletedItems.size() - 1) {
                            city = city + items[Integer.parseInt(seletedItems.get(i).toString())];
                        } else {
                            city = city + items[Integer.parseInt(seletedItems.get(i).toString())] + ",";
                        }

                    }
                    btn_city_todisplay.setText(city);
                    dialog.dismiss();

                }
            }).setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int id) {
                    //  Your code when user clicked on Cancel
                }
            }).create();
    dialog.show();

Answer 4

Use spinner method to show selected item

    spinner.setSelection(position);

Here position is the last selected position